A risk-aware architecture for resilient spacecraft operations
CaltechAUTHORS
View Archive Info| Field | Value | |
| Title |
A risk-aware architecture for resilient spacecraft operations
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| Creator |
McGhan, Catharine L. R.
Murray, Richard M. Serra, Romain Ingham, Michel D. Ono, Masahiro Estlin, Tara Williams, Brian C. |
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| Description |
In this paper we discuss a resilient, risk-aware software architecture for onboard, real-time autonomous operations that is intended to robustly handle uncertainty in space-craft behavior within hazardous and unconstrained environments, without unnecessarily increasing complexity. This architecture, the Resilient Spacecraft Executive (RSE), serves three main functions: (1) adapting to component failures to allow graceful degradation, (2) accommodating environments, science observations, and spacecraft capabilities that are not fully known in advance, and (3) making risk-aware decisions without waiting for slow ground-based reactions. This RSE is made up of four main parts: deliberative, habitual, and reflexive layers, and a state estimator that interfaces with all three. We use a risk-aware goal-directed executive within the deliberative layer to perform risk-informed planning, to satisfy the mission goals (specified by mission control) within the specified priorities and constraints. Other state-of-the-art algorithms to be integrated into the RSE include correct-by-construction control synthesis and model-based estimation and diagnosis. We demonstrate the feasibility of the architecture in a simple implementation of the RSE for a simulated Mars rover scenario.
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| Publisher |
IEEE
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| Date |
2015-03
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| Type |
Book Section
PeerReviewed |
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| Relation |
http://resolver.caltech.edu/CaltechAUTHORS:20150818-140635950
http://authors.library.caltech.edu/59744/ |
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| Identifier |
McGhan, Catharine L. R. and Murray, Richard M. and Serra, Romain and Ingham, Michel D. and Ono, Masahiro and Estlin, Tara and Williams, Brian C. (2015) A risk-aware architecture for resilient spacecraft operations. In: 2015 IEEE Aerospace Conference. IEEE , Piscataway, NJ, pp. 1-15. ISBN 978-1-4799-5379-0 http://resolver.caltech.edu/CaltechAUTHORS:20150818-140635950 <http://resolver.caltech.edu/CaltechAUTHORS:20150818-140635950>
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